Noise reduction and tilt reduction in passive FET multi-phase mixers
2012 (English)Patent (Other (popular science, discussion, etc.))
The noise response in a passive mixer circuit is improved by discharging the switching transistors in the mixer circuit in an appropriate time slot prior to activation. In addition to improving the noise response, tilt in conversion gains and linearity can be reduced. A passive mixer circuit includes bypass switches arranged in proximity to the switching transistors that make up the mixer core. These bypass switches, which are activated in intervals just prior to the active intervals of their neighboring switching transistors, discharge to ground accumulated charges on the switching transistors or on reactive components around switches.
Place, publisher, year, edition, pages
IdentifiersURN: urn:nbn:se:kth:diva-182558OAI: oai:DiVA.org:kth-182558DiVA: diva2:904711
US 8818310B2 (2014-08-26)
QC 201604132016-02-192016-02-192016-04-13Bibliographically approved